multiple field search in drop down or lookup combobox in delphi

See more:

Delphi

Hello,
I want the search facility for user that he/she can search any of the values from the fields in combobox/lookup combobox.

eg. i have dropdown box with
3 fields... 1. Name
2. Address
3. Mobile Number
if User write letter A in dropdown box then records starts with A from field 1, Field 2 are displays...

if User write Number like 3 then records with number 3 in mobile number should be display...

please give your feedback and solution for the same.. thanks a lot in advance....